question about brewers yeast

I cannot find powdered brewers yeast anywhere in my area. All I found is 680 mg brewers yeast tablets. Not sure how to break this down to what they need. My ducks are 6 weeks old and they seem to lay down an awful lot. I didn't give it to them when they were little, because I didn't know. Anyone know if I can use these tablets, maybe quartered??

Yes, I am going to order some, but I was trying to get started asap. I was reading the bottle and it says that 680 mg is = to 10.5 grains, whatever that means.. I'm thinking I will half or quarter it until I can get the right stuff. I just wanted to make sure it wouldn't hurt them

Yes, I am going to order some, but I was trying to get started asap. I was reading the bottle and it says that 680 mg is = to 10.5 grains, whatever that means.. I'm thinking I will half or quarter it until I can get the right stuff. I just wanted to make sure it wouldn't hurt them

Click to expand...

A "grain" is just a unit of measure. Google tells me.... "A grain is a unit of measurement of mass equal to 64.79891 milligrams." So you actually have 680.388555 mg in 10.5 grains. Or more likely, you have 10.494003680000172842413552944023 grains in each pill. Hahahaha. Good luck!